432 lines
11 KiB
C
432 lines
11 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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/**
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* @defgroup Icon Icon
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*
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* A standard icon that may be provided by the theme (delete, edit,
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* arrows etc.) or a custom file (PNG, JPG, EDJE etc.) used for an
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* icon. The Icon may scale or not and of course... support alpha
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* channels.
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*
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* Signals that you can add callbacks for are:
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*
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* clicked - This is called when a user has clicked the icon
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*/
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typedef struct _Widget_Data Widget_Data;
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struct _Widget_Data
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{
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Evas_Object *img;
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const char *stdicon;
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Elm_Icon_Lookup_Order lookup_order;
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#ifdef ELM_EFREET
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struct {
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int requested_size;
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Eina_Bool use : 1;
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} freedesktop;
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#endif
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Eina_Bool scale_up : 1;
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Eina_Bool scale_down : 1;
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Eina_Bool smooth : 1;
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Eina_Bool fill_outside : 1;
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Eina_Bool no_scale : 1;
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};
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static const char *widtype = NULL;
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static void _del_hook(Evas_Object *obj);
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static void _theme_hook(Evas_Object *obj);
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static void _sizing_eval(Evas_Object *obj);
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static void _mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info);
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static Eina_Bool _icon_standard_set(Widget_Data *wd, Evas_Object *obj, const char *name);
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static Eina_Bool _icon_freedesktop_set(Widget_Data *wd, Evas_Object *obj, const char *name, int size);
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static void
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_del_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (wd->stdicon) eina_stringshare_del(wd->stdicon);
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free(wd);
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}
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static void
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_theme_hook(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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if (wd->stdicon)
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_elm_theme_object_icon_set(obj, wd->img, wd->stdicon, elm_widget_style_get(obj));
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_sizing_eval(obj);
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}
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static void
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_sizing_eval(Evas_Object *obj)
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{
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
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int w, h;
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_els_smart_icon_size_get(wd->img, &w, &h);
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#ifdef ELM_EFREET
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if ((wd->freedesktop.use) && (!((w - wd->freedesktop.requested_size) % 16)))
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{
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/* This icon has been set to a freedesktop icon, and the requested
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appears to have a different size than the requested size, so try to
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request another, higher resolution, icon.
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FIXME: Find a better heuristic to determine if there should be
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an icon with a different resolution. */
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if (!_icon_freedesktop_set(wd, obj, wd->stdicon, w))
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wd->freedesktop.use = EINA_TRUE;
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}
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#endif
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_els_smart_icon_scale_up_set(wd->img, wd->scale_up);
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_els_smart_icon_scale_down_set(wd->img, wd->scale_down);
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_els_smart_icon_smooth_scale_set(wd->img, wd->smooth);
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_els_smart_icon_fill_inside_set(wd->img, !(wd->fill_outside));
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if (wd->no_scale) _els_smart_icon_scale_set(wd->img, 1.0);
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else
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{
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_els_smart_icon_scale_set(wd->img, elm_widget_scale_get(obj) *
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_elm_config->scale);
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_els_smart_icon_size_get(wd->img, &w, &h);
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}
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if (!wd->scale_down)
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{
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minw = w;
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minh = h;
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}
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if (!wd->scale_up)
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{
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maxw = w;
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maxh = h;
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}
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evas_object_size_hint_min_set(obj, minw, minh);
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evas_object_size_hint_max_set(obj, maxw, maxh);
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}
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static void
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_mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
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{
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Evas_Event_Mouse_Up *ev = event_info;
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if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return;
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evas_object_smart_callback_call(data, "clicked", event_info);
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}
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/**
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* Add a new icon to the parent
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*
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* @param parent The parent object
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* @return The new object or NULL if it cannot be created
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*
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* @ingroup Icon
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*/
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EAPI Evas_Object *
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elm_icon_add(Evas_Object *parent)
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{
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Evas_Object *obj;
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Evas *e;
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Widget_Data *wd;
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wd = ELM_NEW(Widget_Data);
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e = evas_object_evas_get(parent);
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obj = elm_widget_add(e);
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ELM_SET_WIDTYPE(widtype, "icon");
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elm_widget_type_set(obj, "icon");
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elm_widget_can_focus_set(obj, EINA_FALSE);
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elm_widget_sub_object_add(parent, obj);
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elm_widget_data_set(obj, wd);
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elm_widget_del_hook_set(obj, _del_hook);
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elm_widget_theme_hook_set(obj, _theme_hook);
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wd->lookup_order = ELM_ICON_LOOKUP_FDO_THEME;
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wd->img = _els_smart_icon_add(e);
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evas_object_event_callback_add(wd->img, EVAS_CALLBACK_MOUSE_UP,
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_mouse_up, obj);
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evas_object_repeat_events_set(wd->img, EINA_TRUE);
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elm_widget_resize_object_set(obj, wd->img);
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wd->smooth = EINA_TRUE;
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wd->scale_up = EINA_TRUE;
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wd->scale_down = EINA_TRUE;
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_sizing_eval(obj);
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return obj;
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}
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/**
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* Set the file that will be used as icon
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*
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* @param obj The icon object
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* @param file The path to file that will be used as icon
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* @param group The group that the icon belongs in edje file
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*
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* @return (1 = success, 0 = error)
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*
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* @ingroup Icon
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*/
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EAPI Eina_Bool
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elm_icon_file_set(Evas_Object *obj, const char *file, const char *group)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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Eina_Bool ret;
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const char *p;
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if ((!wd) || (!file)) return EINA_FALSE;
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if (wd->stdicon) eina_stringshare_del(wd->stdicon);
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wd->stdicon = NULL;
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if (((p = strrchr(file, '.'))) && (!strcasecmp(p, ".edj")))
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ret = _els_smart_icon_file_edje_set(wd->img, file, group);
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else
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ret = _els_smart_icon_file_key_set(wd->img, file, group);
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_sizing_eval(obj);
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return ret;
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}
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static Eina_Bool
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_icon_standard_set(Widget_Data *wd, Evas_Object *obj, const char *name)
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{
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if (_elm_theme_object_icon_set(obj, wd->img, name, "default"))
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{
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#ifdef ELM_EFREET
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wd->freedesktop.use = EINA_FALSE;
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#endif
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return EINA_TRUE;
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}
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return EINA_FALSE;
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}
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static Eina_Bool
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_icon_freedesktop_set(Widget_Data *wd, Evas_Object *obj, const char *name, int size)
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{
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#ifdef ELM_EFREET
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char *path;
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elm_need_efreet();
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path = efreet_icon_path_find(getenv("E_ICON_THEME"), name, size);
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if (!path)
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{
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const char **itr;
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static const char *themes[] = {
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"default", "highcolor", "hicolor", "gnome", "Human", "oxygen", NULL
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};
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for (itr = themes; (!path) && (*itr); itr++)
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path = efreet_icon_path_find(*itr, name, size);
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}
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wd->freedesktop.use = !!path;
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if (wd->freedesktop.use)
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{
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wd->freedesktop.requested_size = size;
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elm_icon_file_set(obj, path, NULL);
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free(path);
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return EINA_TRUE;
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}
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#endif
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return EINA_FALSE;
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}
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static inline int
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_icon_size_min_get(Evas_Object *icon)
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{
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int size;
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_els_smart_icon_size_get(icon, &size, NULL);
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return (size < 32) ? 32 : size;
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}
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/**
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* Set the theme, as standard, for a icon
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*
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* @param obj The icon object
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* @param name The theme name
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*
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* @return (1 = success, 0 = error)
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*
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* @ingroup Icon
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*/
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EAPI Eina_Bool
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elm_icon_standard_set(Evas_Object *obj, const char *name)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
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Widget_Data *wd = elm_widget_data_get(obj);
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char *tmp;
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Eina_Bool ret;
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if ((!wd) || (!name)) return EINA_FALSE;
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/* try locating the icon using the specified lookup order */
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switch (wd->lookup_order)
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{
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case ELM_ICON_LOOKUP_FDO:
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ret = _icon_freedesktop_set(wd, obj, name, _icon_size_min_get(wd->img));
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break;
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case ELM_ICON_LOOKUP_THEME:
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ret = _icon_standard_set(wd, obj, name);
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break;
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case ELM_ICON_LOOKUP_THEME_FDO:
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ret = _icon_standard_set(wd, obj, name) ||
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_icon_freedesktop_set(wd, obj, name, _icon_size_min_get(wd->img));
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break;
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case ELM_ICON_LOOKUP_FDO_THEME:
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default:
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ret = _icon_freedesktop_set(wd, obj, name, _icon_size_min_get(wd->img)) ||
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_icon_standard_set(wd, obj, name);
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break;
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}
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if (ret)
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{
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eina_stringshare_replace(&wd->stdicon, name);
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_sizing_eval(obj);
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return EINA_TRUE;
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}
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/* if that fails, see if icon name is in the format size/name. if so,
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try locating a fallback without the size specification */
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if (!(tmp = strchr(name, '/'))) return EINA_FALSE;
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++tmp;
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if (*tmp) return elm_icon_standard_set(obj, tmp);
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/* give up */
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return EINA_FALSE;
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}
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/**
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* Sets icon lookup order, used by elm_icon_standard_set().
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*
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* @param obj The icon object
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* @param order The icon lookup order
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_order_lookup_set(Evas_Object *obj, Elm_Icon_Lookup_Order order)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (wd) wd->lookup_order = order;
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}
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/**
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* Gets the icon lookup order.
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*
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* @param obj The icon object
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* @return The icon lookup order
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*
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* @ingroup Icon
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*/
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EAPI Elm_Icon_Lookup_Order
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elm_icon_order_lookup_get(Evas_Object *obj)
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{
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ELM_CHECK_WIDTYPE(obj, widtype) ELM_ICON_LOOKUP_FDO_THEME;
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return ELM_ICON_LOOKUP_FDO_THEME;
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return wd->lookup_order;
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}
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/**
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* Set the smooth effect for a icon
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*
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* @param obj The icon object
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* @param smooth A bool to set (or no) smooth effect
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* (1 = smooth, 0 = not smooth)
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_smooth_set(Evas_Object *obj, Eina_Bool smooth)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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wd->smooth = smooth;
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_sizing_eval(obj);
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}
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/**
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* Set if the object is scalable
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*
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* @param obj The icon object
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* @param no_scale A bool to set scale (or no)
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* (1 = no_scale, 0 = scale)
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_no_scale_set(Evas_Object *obj, Eina_Bool no_scale)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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wd->no_scale = no_scale;
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_sizing_eval(obj);
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}
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/**
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* Set if the object is (up/down) scalable
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*
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* @param obj The icon object
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* @param scale_up A bool to set if the object is scalable up
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* @param scale_down A bool to set if the object is scalable down
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_scale_set(Evas_Object *obj, Eina_Bool scale_up, Eina_Bool scale_down)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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wd->scale_up = scale_up;
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wd->scale_down = scale_down;
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_sizing_eval(obj);
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}
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/**
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* Set if the object is filled outside
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*
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* @param obj The icon object
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* @param fill_outside A bool to set if the object is filled outside
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* (1 = filled, 0 = no filled)
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_fill_outside_set(Evas_Object *obj, Eina_Bool fill_outside)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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wd->fill_outside = fill_outside;
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_sizing_eval(obj);
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}
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/**
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* Set the prescale size for the icon
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*
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* @param obj The icon object
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* @param size The prescale size
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*
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* @ingroup Icon
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*/
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EAPI void
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elm_icon_prescale_set(Evas_Object *obj, int size)
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{
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ELM_CHECK_WIDTYPE(obj, widtype);
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Widget_Data *wd = elm_widget_data_get(obj);
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if (!wd) return;
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_els_smart_icon_scale_size_set(wd->img, size);
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}
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